Standard:EN14399-6
Description:
EN 14399-6 washers, also known as heavy washers, are designed for use in high-strength structural bolting assemblies. These washers conform to the EN 14399-6 standard, which specifies their dimensions, material requirements, and mechanical properties. The parameters you mentioned, M12-M36, indicate that these washers are available in metric sizes ranging from M12 to M36.
Regarding the surface finish options for EN 14399-6 washers, you have two choices: plain and Dacromet.
1.Plain finish: Plain washers have no additional coating or finish applied to them. They are typically made of carbon steel and do not provide corrosion resistance. These washers are suitable for use in indoor or dry environments where corrosion is not a concern. However, they may rust over time if exposed to moisture or corrosive elements.
2.Dacromet finish: Dacromet is a brand name for a type of coating that offers excellent corrosion resistance. It is an inorganic coating applied to the surface of the washers through a dip-spin process. Dacromet coatings provide a high level of protection against corrosion, salt spray, and various chemicals. They are commonly used in applications where washers are exposed to harsh environments or where long-term corrosion protection is required.
The choice between plain and Dacromet finishes depends on the specific application requirements, including the level of corrosion resistance needed and the operating environment. If corrosion resistance is a concern, Dacromet-coated washers would be a suitable choice, especially for outdoor or corrosive environments. On the other hand, if corrosion is not a significant concern, plain washers may be sufficient for indoor or dry applications.
| Material | 45#/40CR |
| Size | M12-M36 |
| Finish | Plain/black/ZINC/HDG/Dacromet/Mechanical Galvanized |
| Hardness | HV300/HRC35-45 |
| Marking | can be Customized |
| Application | Constrution/Wind turbines/railway line |
| Packing | Carton+ pallet; we can pack washers as your requirements |
| Terms | FOB+shanghai/ningbo |
| Delivery time | 30-70days |
| Size |
Inner diameter (min) |
Inner diameter (max) |
Outside diameter (max) |
Outside diameter (min) |
Thickness (nominal size) |
Thickness (max) |
Thickness (min) |
Inside chamfer (min) |
Inside chamfer (max) |
External chamfer |
|---|---|---|---|---|---|---|---|---|---|---|
| M12 | 13 | 13.27 | 24 | 23.48 | 3 | 3.3 | 2.7 | 1.6 | 1.9 | 0.5 |
| M16 | 17 | 17.27 | 30 | 29.48 | 4 | 4.3 | 3.7 | 1.6 | 1.9 | 1 |
| M20 | 21 | 21.33 | 37 | 36.38 | 4 | 4.3 | 3.7 | 2 | 2.5 | 1 |
| M22 | 23 | 23.33 | 39 | 38.38 | 4 | 4.3 | 3.7 | 2 | 2.5 | 1 |
| M24 | 25 | 25.33 | 44 | 43.38 | 4 | 4.3 | 3.7 | 2 | 2.5 | 1 |
| M27 | 28 | 28.52 | 50 | 49 | 5 | 5.6 | 4.4 | 2.5 | 3 | 1 |
| M30 | 31 | 31.62 |
56 |
54.8 | 5 | 5.6 | 4.4 | 2.5 | 3 | 1 |
|
M36 |
37 | 37.62 | 66 | 64.8 | 6 | 6.6 | 5.4 | 3 | 3.5 | 1.5 |
Products pictures for Flat washers
